Hand-held power tool

Abstract

In a hand-held power tool having a gear transmission, which is drivable by a motor, for driving a drive shaft, the gear transmission being shiftable at least between a first gear and a second gear via a gear shifting device, the gear shifting device has a sensor system, which is connected to an electronic unit, for detecting a gear shifting procedure. The electronic unit is designed for the purpose of activating the motor using predefined motor parameters which are assigned to the detected gear shifting procedure, on the basis of a gear shifting signal which is generated by the sensor system when a gear shifting procedure is detected.

What is claimed is: 
     
       1. A hand-held power tool comprising:
 a driveshaft; 
 a motor; 
 a gear transmission, which is drivable by the motor, to drive the driveshaft; 
 a gear shifting device for shifting the gear transmission at least between a first gear and a second gear, the gear shifting device including a sensor system for detecting a gear shifting procedure; and 
 an electronic unit, coupled to the sensor system, for controlling the motor using predefined motor parameters which are assigned to the detected gear shifting procedure, on the basis of a gear shifting signal generated by the sensor system when the gear shifting procedure is detected, 
 wherein the gear shifting device includes a gear shift linkage for a mechanical shift between the first gear and the second gear, which is connected to a signal transducer assigned to the sensor system, 
 wherein the gear shift linkage is connected to a manual switch for turning on the motor, the signal transducer being displaceable relative to a sensor via the gear shift linkage by operating the manual switch. 
 
     
     
       2. The hand-held power tool according to  claim 1 , wherein the sensor system detects a gear shifting procedure in a contactless manner. 
     
     
       3. The hand-held power tool according to  claim 1 , wherein the sensor system includes a capacitive sensor. 
     
     
       4. The hand-held power tool according to  claim 1 , wherein the sensor system includes a magnetic sensor. 
     
     
       5. The hand-held power tool according to  claim 1 , wherein the sensor system includes an inductive sensor. 
     
     
       6. The hand-held power tool according to  claim 1 , wherein the sensor system includes an optical sensor. 
     
     
       7. The hand-held power tool according to  claim 1 , wherein the sensor system detects a gear shifting procedure using contact. 
     
     
       8. The hand-held power tool according to  claim 1 , wherein the sensor system includes an ohmic sensor. 
     
     
       9. The hand-held power tool according to  claim 1 , wherein the sensor system is situated in proximity to the gear transmission. 
     
     
       10. The hand-held power tool according to  claim 1 , wherein the signal transducer, which is assigned to the sensor system, is connected to the manual switch for turning on the motor, and is displaceable relative to the sensor by operating the manual switch.